Developers have been given permission to build offices and flats in a historic part of Newcastle where important remains may be buried.

The hope is that when old buildings on the site are cleared any medieval or Roman remains underneath will be uncovered before the scheme gets under way.

A preliminary investigation has already unearthed archaeological deposits, including some medieval pottery and a 17th Century clay tobacco pipe.

However, there have been no finds of major importance so far.

The site, off Causey Bank above the Quayside, contains garage and workshop buildings and is near the 700-year-old Sallyport Tower, a scheduled ancient monument.

Nearby are the historic buildings of the former Keelman's Hospital and Garth Heads.

Developer Adderstone Properties wants to clear the site and build a five-storey block with offices on two floors, five flats above and a basement car park.

There had been an objection by English Heritage but that has now been withdrawn.

The project was put on hold in October so archaeologists could investigate but city councillors were told there is no evidence to suggest the Roman military road or ancient town walls run through the site.

Members of the development control committee have given their backing to the redevelopment, subject to a condition that further archaeological work takes place before building starts.

In a report to councillors, head of planning and transportation John Miller said: "It's the view of the county archaeologist and English Heritage that the site still has considerable archaeological potential.

"Further excavation is required to better investigate these deposits and determine what they represent.

"There is a possibility that the Roman road and medieval ditch could be present elsewhere on the site.

"There can be no more excavation on this site until it has been cleared of buildings and it is considered unreasonable to require this of the developer prior to the grant of planning permission."